<template>
  <!-- 头部 -->
  <header class="header">
    <!-- 头部的第一行 -->
    <div class="top">
      <div class="container">
        <div class="loginList">
          <p>
            <!-- 注意：vue2支持vue-i18n版本8.0+，vue3支持vue-i18n版本9.0+。 -->
            <a href="javascript:void(0);" v-on:click="$router.push('/home')" style="text-decoration: none;">{{ $t('title') }}</a>
          </p>
          <!-- 场景一：通过v-if指令判断如果nickName有值则显示如下内容。 -->
          <p v-if="$store.state.user.nickName">
            <a href="javascript:void(0);">{{ $store.state.user.nickName }}</a>
            <a href="javascript:void(0);" class="register" v-on:click="logout($event)">退出登录</a>
          </p>
          <!-- 场景二：通过v-else指令判断否则显示如下内容。 -->
          <p v-else>
            <span>请</span>
            <a href="javascript:void(0);" v-on:click="$router.push('login')">登录</a>
            <a href="javascript:void(0);" class="register" v-on:click="$router.push('register')">免费注册</a>
          </p>
        </div>
        <div class="typeList">
          <!-- 第07步：定义路由的【链接】router-link -->
          <router-link to="/cart">My Cart</router-link>
          <!-- 第07步：定义路由的【链接】router-link -->
          <router-link to="/center">My Order</router-link>
          <a href="javascript:void(0);">我的尚品汇</a>
          <a href="javascript:void(0);">尚品汇会员</a>
          <a href="javascript:void(0);">企业采购</a>
          <a href="javascript:void(0);">关注尚品汇</a>
          <a href="javascript:void(0);">合作招商</a>
          <a href="javascript:void(0);">商家后台</a>
        </div>
      </div>
    </div>
    <!--头部第二行 搜索区域-->
    <div class="bottom">
      <h1 class="logoArea">
        <a class="logo" title="尚品汇" href="javascript:void(0);" target="_self">
          <img src="./images/jd_logo.png" alt="" title="">
        </a>
      </h1>
      <div class="searchArea">
        <form action="javascript:void(0);" class="searchForm">
          <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="keyword"/>
          <button class="sui-btn btn-xlarge btn-danger" type="button" v-on:click="goToSearch($event)">搜索</button>
          <!-- <button class="sui-btn btn-xlarge btn-danger" type="button" v-on:click="$router.push('search')">搜索</button> -->
          <!-- 第07步：定义路由的【链接】router-link -->
          <!-- <router-link class="sui-btn btn-xlarge btn-danger" type="button" to="/search">搜索</router-link> -->
        </form>
      </div>
    </div>
  </header>
</template>

<script>
export default {
  name: 'HeaderView',
  data() {
    return {
      keyword: '',
    };
  },
  methods: {
    // 此处来自于HeaderView组件goToSearch()函数。另处来自于NavigateView组件goToSearch()函数。
    goToSearch(event) {
      console.log(event.target.type);
      const json = {
        name: 'search',
        params: {
          keyword: this.keyword || undefined
        }
      };
      if (this.$route.query.categoryName) {
        json.query = this.$route.query;
      }
      this.$router.push(json);
    },
    logout() {
      this.$store.dispatch("logout");
    }
  },
  mounted() {
    // 搜索页面的搜索关键字输入框清空的同时，头部页面也清空
    this.$bus.$on("clearKeyword", () => {
      this.keyword = '';
    });
  }
}
</script>

<style lang="less" scoped>
.header {
  & > .top {
    background-color: #eaeaea;
    height: 30px;
    line-height: 30px;

    .container {
      width: 1200px;
      margin: 0 auto;
      overflow: hidden;

      .loginList {
        float: left;

        p {
          float: left;
          margin-right: 10px;

          .register {
            border-left: 1px solid #b3aeae;
            padding: 0 5px;
            margin-left: 5px;
          }
        }
      }

      .typeList {
        float: right;

        a {
          padding: 0 10px;

          & + a {
            border-left: 1px solid #b3aeae;
          }
        }

      }

    }
  }

  & > .bottom {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;

    .logoArea {
      float: left;

      .logo {
        img {
          width: 175px;
          margin: 25px 45px;
        }
      }
    }

    .searchArea {
      float: right;
      margin-top: 35px;

      .searchForm {
        overflow: hidden;

        input {
          box-sizing: border-box;
          width: 490px;
          height: 32px;
          padding: 0px 4px;
          border: 2px solid #ea4a36;
          float: left;

          &:focus {
            outline: none;
          }
        }

        button {
          height: 32px;
          width: 68px;
          background-color: #ea4a36;
          border: none;
          color: #fff;
          float: left;
          cursor: pointer;

          &:focus {
            outline: none;
          }
        }
      }
    }
  }
}
</style>
